--- /dev/null
+#!/bin/sh
+#
+# A simple RTP receiver with retransmission
+#
+# receives H264 encoded RTP video on port 5000, RTCP is received on port 5001.
+# the receiver RTCP reports are sent to port 5005
+#
+# .-------. .----------. .---------. .-------. .-----------.
+# RTP |udpsrc | | rtpbin | |h264depay| |h264dec| |xvimagesink|
+# port=5000 | src->recv_rtp recv_rtp->sink src->sink src->sink |
+# '-------' | | '---------' '-------' '-----------'
+# | |
+# | | .-------.
+# | | |udpsink| RTCP
+# | send_rtcp->sink | port=5005
+# .-------. | | '-------' sync=false
+# RTCP |udpsrc | | | async=false
+# port=5001 | src->recv_rtcp |
+# '-------' '----------'
+
+
+# the caps of the sender RTP stream. This is usually negotiated out of band with
+# SDP or RTSP. normally these caps will also include SPS and PPS but we don't
+# have a mechanism to get this from the sender with a -launch line.
+VIDEO_CAPS="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264"
+
+VIDEO_DEC="queue ! rtph264depay ! avdec_h264"
+
+VIDEO_SINK="videoconvert ! autovideosink"
+
+# the destination machine to send RTCP to. This is the address of the sender and
+# is used to send back the RTCP reports of this receiver. If the data is sent
+# from another machine, change this address.
+DEST=127.0.0.1
+
+LATENCY=200
+
+gst-launch-1.0 -v rtpbin name=rtpbin latency=$LATENCY do-retransmission=1 \
+ udpsrc caps=$VIDEO_CAPS port=5000 ! rtpbin.recv_rtp_sink_0 \
+ rtpbin. ! $VIDEO_DEC ! $VIDEO_SINK \
+ udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \
+ rtpbin.send_rtcp_src_0 ! udpsink port=5005 host=$DEST sync=false async=false
--- /dev/null
+#!/bin/sh
+#
+# A simple RTP server with retransmission
+# sends the output of videotestsrc as h264 encoded RTP on port 5000, RTCP is sent on
+# port 5001. The destination is 127.0.0.1.
+# the video receiver RTCP reports are received on port 5005
+#
+# .-------. .-------. .-------. .----------. .-------.
+# |videots| |h264enc| |h264pay| | rtpbin | |udpsink| RTP
+# | src->sink src->sink src->send_rtp send_rtp->sink | port=5000
+# '-------' '-------' '-------' | | '-------'
+# | |
+# | | .-------.
+# | | |udpsink| RTCP
+# | send_rtcp->sink | port=5001
+# .-------. | | '-------' sync=false
+# RTCP |udpsrc | | | async=false
+# port=5005 | src->recv_rtcp |
+# '-------' '----------'
+#
+# ideally we should transport the properties on the RTP udpsink pads to the
+# receiver in order to transmit the SPS and PPS earlier.
+
+# change this to send the RTP data and RTCP to another host
+DEST=127.0.0.1
+
+# tuning parameters to make the sender send the streams out of sync. Can be used
+# ot test the client RTCP synchronisation.
+#VOFFSET=900000000
+VOFFSET=0
+AOFFSET=0
+
+# H264 encode from the source
+VELEM="videotestsrc is-live=1 horizontal-speed=1"
+VCAPS="video/x-raw,width=352,height=288,framerate=15/1"
+VSOURCE="$VELEM ! $VCAPS"
+VENC="x264enc tune=zerolatency bitrate=300 ! rtph264pay config-interval=2"
+
+VRTPSINK="udpsink port=5000 host=$DEST ts-offset=$VOFFSET name=vrtpsink"
+VRTCPSINK="udpsink port=5001 host=$DEST sync=false async=false name=vrtcpsink"
+VRTCPSRC="udpsrc port=5005 name=vrtpsrc"
+
+gst-launch-1.0 -v rtpbin name=rtpbin \
+ $VSOURCE ! $VENC ! rtprtxqueue ! rtpbin.send_rtp_sink_0 \
+ rtpbin.send_rtp_src_0 ! identity drop-probability=0.1 ! $VRTPSINK \
+ rtpbin.send_rtcp_src_0 ! $VRTCPSINK \
+ $VRTCPSRC ! rtpbin.recv_rtcp_sink_0